测量接收机中模拟解调参数的自动配置技术研究

Research of Analog Demodulation Parameter Autoset Technology in Measure Receiver

为了满足测量接收机对模拟调制信号的高精度测试,提出模拟解调参数自动配置技术。首先介绍测量接收机的总体方案设计,确定模拟解调参数自动配置技术需要完成的任务。在此基础上,进行模拟调制的误差分析,明确解调参数对测试结果的影响。其次,设计模拟解调参数自动配置技术,着重对步进衰减器、解调带宽、解调时间的自动设置过程进行详细的描述。最后介绍模拟解调参数自动配置技术的实现结果。试验测试表明,模拟解调参数自动配置技术能够很好地满足测量接收机对模拟调制信号的高精度测试需求。

In order to meet the high-precision test of analog modulation signal by measuring receiver, the automatic configuration technology of analog demodulation parameters is proposed. Firstly, the overall scheme design of the measurement receiver is introduced, and the tasks to be completed by the automatic configuration technology of analog demodulation parameters are determined.On this basis, the error analysis of analog modulation is carried out to clarify the influence of demodulation parameters on the test results. Secondly, the automatic configuration technology of analog demodulation parameters is designed, and the automatic setting process of step attenuator, demodulation bandwidth and demodulation time is described in detail. Finally, the implementation results of the automatic configuration technology of analog demodulation parameters are introduced. The test results show that the automatic configuration technology of analog demodulation parameters can well meet the high-precision test requirements of the measurement receiver for analog modulation signals.